P2P: Use config block with disabled==2 to store persistent groups

wpa_supplicant/config.c

@@ -1495,7 +1495,7 @@ static const struct parse_data ssid_fields[] = {
 #endif /* IEEE8021X_EAPOL */
 	{ INT_RANGE(mode, 0, 4) },
 	{ INT_RANGE(proactive_key_caching, 0, 1) },
-	{ INT_RANGE(disabled, 0, 1) },
+	{ INT_RANGE(disabled, 0, 2) },
 	{ STR(id_str) },
 #ifdef CONFIG_IEEE80211W
 	{ INT_RANGE(ieee80211w, 0, 2) },

wpa_supplicant/ctrl_iface.c

@@ -677,10 +677,12 @@ static int wpa_supplicant_ctrl_iface_list_networks(
 		if (ret < 0 || ret >= end - pos)
 			return pos - buf;
 		pos += ret;
-		ret = os_snprintf(pos, end - pos, "\t%s%s",
+		ret = os_snprintf(pos, end - pos, "\t%s%s%s",
 				  ssid == wpa_s->current_ssid ?
 				  "[CURRENT]" : "",
-				  ssid->disabled ? "[DISABLED]" : "");
+				  ssid->disabled ? "[DISABLED]" : "",
+				  ssid->disabled == 2 ? "[P2P-PERSISTENT]" :
+				  "");
 		if (ret < 0 || ret >= end - pos)
 			return pos - buf;
 		pos += ret;
@@ -988,6 +990,11 @@ static int wpa_supplicant_ctrl_iface_select_network(
 				   "network id=%d", id);
 			return -1;
 		}
+		if (ssid->disabled == 2) {
+			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Cannot use "
+				   "SELECT_NETWORK with persistent P2P group");
+			return -1;
+		}
 	}
 
 	wpa_supplicant_select_network(wpa_s, ssid);
@@ -1016,6 +1023,11 @@ static int wpa_supplicant_ctrl_iface_enable_network(
 				   "network id=%d", id);
 			return -1;
 		}
+		if (ssid->disabled == 2) {
+			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Cannot use "
+				   "ENABLE_NETWORK with persistent P2P group");
+			return -1;
+		}
 	}
 	wpa_supplicant_enable_network(wpa_s, ssid);
 
@@ -1043,6 +1055,12 @@ static int wpa_supplicant_ctrl_iface_disable_network(
 				   "network id=%d", id);
 			return -1;
 		}
+		if (ssid->disabled == 2) {
+			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Cannot use "
+				   "DISABLE_NETWORK with persistent P2P "
+				   "group");
+			return -1;
+		}
 	}
 	wpa_supplicant_disable_network(wpa_s, ssid);
 

wpa_supplicant/wpa_supplicant.c

@@ -1387,8 +1387,11 @@ void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
 	int was_disabled;
 
 	if (ssid == NULL) {
-		other_ssid = wpa_s->conf->ssid;
-		while (other_ssid) {
+		for (other_ssid = wpa_s->conf->ssid; other_ssid;
+		     other_ssid = other_ssid->next) {
+			if (other_ssid->disabled == 2)
+				continue; /* do not change persistent P2P group
+					   * data */
 			if (other_ssid == wpa_s->current_ssid &&
 			    other_ssid->disabled)
 				wpa_s->reassociate = 1;
@@ -1400,12 +1403,10 @@ void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
 			if (was_disabled != other_ssid->disabled)
 				wpas_notify_network_enabled_changed(
 					wpa_s, other_ssid);
-
-			other_ssid = other_ssid->next;
 		}
 		if (wpa_s->reassociate)
 			wpa_supplicant_req_scan(wpa_s, 0, 0);
-	} else if (ssid->disabled) {
+	} else if (ssid->disabled && ssid->disabled != 2) {
 		if (wpa_s->current_ssid == NULL) {
 			/*
 			 * Try to reassociate since there is no current
@@ -1439,22 +1440,23 @@ void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
 	int was_disabled;
 
 	if (ssid == NULL) {
-		other_ssid = wpa_s->conf->ssid;
-		while (other_ssid) {
+		for (other_ssid = wpa_s->conf->ssid; other_ssid;
+		     other_ssid = other_ssid->next) {
 			was_disabled = other_ssid->disabled;
+			if (was_disabled == 2)
+				continue; /* do not change persistent P2P group
+					   * data */
 
 			other_ssid->disabled = 1;
 
 			if (was_disabled != other_ssid->disabled)
 				wpas_notify_network_enabled_changed(
 					wpa_s, other_ssid);
-
-			other_ssid = other_ssid->next;
 		}
 		if (wpa_s->current_ssid)
 			wpa_supplicant_disassociate(
 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
-	} else {
+	} else if (ssid->disabled != 2) {
 		if (ssid == wpa_s->current_ssid)
 			wpa_supplicant_disassociate(
 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
@@ -1488,16 +1490,16 @@ void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
 	 * Mark all other networks disabled or mark all networks enabled if no
 	 * network specified.
 	 */
-	other_ssid = wpa_s->conf->ssid;
-	while (other_ssid) {
+	for (other_ssid = wpa_s->conf->ssid; other_ssid;
+	     other_ssid = other_ssid->next) {
 		int was_disabled = other_ssid->disabled;
+		if (was_disabled == 2)
+			continue; /* do not change persistent P2P group data */
 
 		other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
 
 		if (was_disabled != other_ssid->disabled)
 			wpas_notify_network_enabled_changed(wpa_s, other_ssid);
-
-		other_ssid = other_ssid->next;
 	}
 	wpa_s->disconnected = 0;
 	wpa_s->reassociate = 1;